Lower cross beam of stacking machine

Abstract

The utility model provides a stacking machine lower cross beam which comprises a frame and bearing wheels, the bottom face of the frame is provided with a rail groove extending along the frame, the bearing wheels are rotatably installed at the front end and the rear end of the frame, the bottoms of the bearing wheels are located on the top of the rail groove, the rail groove is formed in an I-shaped steel ground rail, and the I-shaped steel ground rail is arranged on the frame. The bearing wheels are erected on the top surface of the I-shaped steel ground rail; the frame is provided with a downward concave part, and the bottom face of the downward concave part coincides with the top face of the track groove. The weight of the lower cross beam of the stacking machine is lighter, and the moving speed of the stacking machine can be increased under the condition that the power of a driving motor is not increased; the gravity center of the lower cross beam of the stacking machine is lower, the goods taking and placing requirements of the bottommost layer of a goods shelf are met, and meanwhile the advancing stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automated logistics warehousing, and more precisely, to a lower cross beam of a stacker crane. Background Art

[0002] An automated stereoscopic warehouse can increase the storage capacity by adding vertical storage space on the same site area, and can realize the efficient picking and placing of goods through an automated system. The adoption of an automated stereoscopic warehouse helps to shorten the logistics time, save the logistics cost, and improve the logistics efficiency.

[0003] A stacker crane is the core equipment of an automated stereoscopic warehouse. The stacker crane can realize the all-round transportation of goods through manual, semi-automatic or fully automatic operation, and complete the picking and placing of goods. The working efficiency of the stacker crane determines the working efficiency of the automated stereoscopic warehouse. The stacker crane consists of a lower cross beam, a column installed on the lower cross beam, a driving device combined and installed with the lower cross beam, and a handling component combined and installed with the column. The driving device drives the stacker crane to move horizontally, and the handling component moves up and down along the column. The working efficiency of the stacker crane depends on its horizontal movement speed and vertical movement speed, among which the horizontal movement speed depends on the overall weight of the stacker crane and the driving force of the driving device. On the premise of rated load, the smaller the overall weight of the stacker crane and the greater the stiffness, the more beneficial it is to the design of the driving device, and at the same time, the speed and acceleration of the stacker crane can be improved.

[0004] The lower cross beam is the bottom support structure of the stacker crane and needs to bear the weights of components such as the column, the driving device, and the handling component. Therefore, higher strength requirements are imposed on the lower cross beam. Most of the existing lower cross beams are made by welding standard profiles. In order to ensure the structural strength, the overall weight is relatively large, and a driving motor with a greater power is required under the condition of the same rated load.

[0005] In summary, there is a need in the art for a lower cross beam of a stacker crane that is lighter in weight while ensuring the structural strength. Summary of the Utility Model

[0006] In view of this, the purpose of the utility model is to provide a lower cross beam of a stacker crane, which adopts a low center of gravity structure and is provided with a plurality of limiting wheel bodies to reduce the weight of the lower cross beam and improve the stability.

[0007] To achieve the above purpose, the utility model provides a lower cross beam of a stacker crane, including a frame and load-bearing wheels. The bottom surface of the frame has a track groove extending along the frame. The load-bearing wheels are rotatably installed at the front and rear ends of the frame, and the bottom of the load-bearing wheels is located at the top of the track groove. The track groove is arranged on an I-beam ground rail, and the load-bearing wheels are placed on the top surface of the I-beam ground rail; the frame has a concave part, and the bottom surface of the concave part coincides with the top surface of the track groove.

[0008] Preferably, the center of gravity of the carrying wheel is higher than that of the frame.

[0009] Preferably, the I-beam floor rail is located inside the track groove.

[0010] Preferably, a plurality of guide wheel assemblies are combinedly arranged in the track groove, and the guide wheel assemblies are docked with the side part and the inside of the I-beam floor rail.

[0011] Preferably, the guide wheel assembly includes a plurality of horizontal guide wheel groups and a plurality of vertical anti-tilting wheels. The horizontal guide wheel groups are docked with the side surface of the I-beam floor rail, and the vertical anti-tilting wheels are located in the grooves on both sides of the I-beam floor rail and are arranged in parallel with the carrying wheel.

[0012] Preferably, the horizontal guide wheel group includes a horizontal guide wheel and a compression spring adjusting rod, and the horizontal guide wheel is connected to the frame through the compression spring adjusting rod.

[0013] Compared with the prior art, the advantages of a lower crossbeam of a stacker disclosed by the present utility model are as follows: the lower crossbeam of the stacker is lighter in weight, and the moving speed of the stacker can be increased without increasing the power of the driving motor; the lower crossbeam of the stacker has better structural strength and is not easily deformed; the lower crossbeam of the stacker has a lower center of gravity, which meets the requirements of picking and placing goods at the bottom layer of the shelf and improves the stability during traveling; the lower crossbeam of the stacker is provided with a plurality of limiting guide wheels docked with the floor rail to prevent tipping during traveling. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] As Figure 1 shown is a schematic structural diagram of a lower crossbeam of a stacker of the present utility model.

[0016] As Figure 2 shown is a front view of a lower crossbeam of a stacker of the present utility model.

[0017] As Figure 3 shown is a right view of a lower crossbeam of a stacker of the present utility model. Detailed Embodiments

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] As Figures 1 to 3 shown, a lower cross beam of a stacker in the present application includes a frame 1 and load wheels 2. The bottom surface of the frame 1 has a track groove 10 extending along the frame 1. The load wheels 2 are rotatably installed at the front and rear ends of the frame 1, and the bottom of the load wheels 2 is located at the top of the track groove 10. The track groove 10 is arranged on an I-beam ground rail, and the load wheels 2 are placed on the top surface of the I-beam ground rail. The frame 1 has a concave portion 11, and the bottom surface of the concave portion 11 coincides with the top surface of the track groove 10. By setting the concave portion 11, the center of gravity of the lower cross beam can be reduced, the requirement for picking and placing goods at the bottom layer of the shelf can be met, and the stability during traveling can be improved at the same time; by combining the setting of the track groove 10 and the concave portion 11, the weight of the lower cross beam of the stacker can be reduced while maintaining the structural strength, and the moving speed of the stacker can be increased without increasing the power of the driving motor.

[0020] The front surface of the frame 1 is concave, and the handling assembly of the stacker can be lowered to the bottom surface of the concave portion 11, so as to meet the picking and placing requirements of the bottom layer shelf. The center of gravity of the load wheels 2 is higher than the center of gravity of the frame 1, which helps to improve the stability of the lower cross beam during movement. The frame 1 is manufactured by an overall laser cutting process, which has higher structural strength, and the process is simple and the cost is low.

[0021] The I-beam ground rail is located inside the track groove, which can reduce the overall installation height of the stacker and improve the overall stability of the stacker.

[0022] Further, a number of guide wheel assemblies are combinedly arranged in the track groove 10. The guide wheel assemblies are docked with the side and inside of the I-beam ground rail to prevent the lower cross beam from tipping in the front, back, left, and right directions. Preferably, guide wheel assemblies are respectively combinedly installed at both ends of the frame 1, and the guide wheel assemblies are located at the bottom of the load wheels 2.

[0023] The guide wheel assembly includes a number of horizontal guide wheel groups 3 and a number of vertical anti-tipping wheels 4. The horizontal guide wheel groups 3 are docked with the side surface of the I-beam ground rail to prevent the lower cross beam of the stacker from swaying in the left and right directions during movement. The vertical anti-tipping wheels 4 are located in the grooves on both sides of the I-beam ground rail and are arranged parallel to the load wheels 2 to prevent the lower cross beam of the stacker from swaying in the front and back directions during movement, and further avoid front and rear tipping when the speed and acceleration of the stacker are relatively fast.

[0024] The horizontal guide wheel set 3 includes a horizontal guide wheel 31 and a compression spring adjusting rod 32. The horizontal guide wheel 31 is connected to the frame 1 through the compression spring adjusting rod 32. By adjusting the compression spring adjusting rod 32, the horizontal guide wheel 31 can be driven to closely adhere to the side surface of the I-shaped steel floor rail, improving the anti-sway ability.

[0025] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A stacker lower beam, characterized in that: It includes a frame and a load-bearing wheel, wherein the bottom surface of the frame has a track groove extending along the frame, the load-bearing wheel is rotatably installed at the front and rear ends of the frame, and the bottom of the load-bearing wheel is located at the top of the track groove, the track groove is arranged on the I-shaped steel ground rail, and the load-bearing wheel is placed on the top surface of the I-shaped steel ground rail; the frame has a concave portion, and the bottom surface of the concave portion coincides with the top surface of the track groove.

2. The stacker lower beam according to claim 1, characterized in that: The center of gravity of the load-bearing wheel is higher than the center of gravity of the frame.

3. The stacker lower beam according to claim 1, characterized in that: The I-shaped steel ground rail is located inside the track groove.

4. The stacker lower beam according to claim 1, characterized in that: The track groove is combined with a plurality of guide wheel assemblies, and the guide wheel assemblies are butted against the side and the interior of the I-shaped steel ground rail.

5. The stacker lower beam according to claim 4, characterized in that: The guide wheel assembly includes a plurality of horizontal guide wheel groups and a plurality of vertical anti-roll wheels. The horizontal guide wheel groups are connected to the sides of the I-shaped steel rails. The vertical anti-roll wheels are located in grooves on both sides of the I-shaped steel rails and are arranged parallel to the load-bearing wheels.

6. The stacker lower beam according to claim 5, characterized in that: The horizontal guide wheel group includes a horizontal guide wheel and a compression spring adjustment rod, and the horizontal guide wheel is connected to the frame through the compression spring adjustment rod.

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